Following the thresholds defined by a previous study [25], low EZH2 IHC expression (< 70% of tumoral cells stained) was observed in 36% of patients (55% ABC and 39% GCB), whereas high EZH2 IHC expression (≥ 70% of tumoral cells stained) was observed in 64% of patients (41% ABC and 53% GCB). Here, EZH2 is linked to aneurysmal bone cyst.